SupChain as a Universal Solution for Product Tracking

Stage 1- SupChain as a Centralized Application

For each technological redistribution, information is added and complemented by commercial and technical services as needed. The consumer can see all the information about the purchased product and modification history. In addition, all \information is accessible to any employee of enterprises within the supply chain. This means they can access information about a product, obtain data on the manufacturer and production of the product, leave feedback or recommendations for any manufac- turer, etc. Information records are confirmed in the database by the cryptographic signature of each participant.

Each participant, from the supplier of materials to the consumer, has a private key to sign informa- tion regarding performed transactions. When sending material, the supplier enters the required information and signs it with their own key. The receiving participant checks the received material and uses their own key to sign the same information if they find everything appropriate. The pro- cess is repeated for all participants. Signatures are sent to a centralized application, accessible to all involved. It is absolutely impossible to forge the signatures of other members of the application.

If any member discovers a discrepancy, they can attest to the actual information received. Even if they do not, it will be possible to easily detect a discrepancy (the received material will not be cor- related with the manufactured product) in retrospect. In practice, each participant will have the ability to quickly and conveniently fill out and verify information about arrivals and shipments. The format of these records will be standardized and the Signature feature will only be accessible through a physical device. To prevent unauthorized signing (key duplication), it is absolutely impossible to ex- tract private keys from the device.